1<xsl:stylesheet version="1.8"
2		xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
3  <xsl:template match="/">
4    <xsl:choose>
5      <xsl:when test="system-property('xsl:version') >= 1.8">
6	<xsl:exciting-new-1.8-feature/>
7      </xsl:when>
8      <xsl:otherwise>
9	<html>
10	<head>
11	  <title>XSLT 1.8 required</title>
12	</head>
13	<body>
14	  <p>Sorry, this stylesheet requires XSLT 1.8.</p>
15	</body>
16	</html>
17      </xsl:otherwise>
18    </xsl:choose>
19  </xsl:template>
20</xsl:stylesheet>
21